Home / 15,497.48-21,386.77-8,423.93

Finding the Fourth Proportional to 15,497.48, 21,386.77 and 8,423.93

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Solution

The fourth proportional to 15,497.48, 21,386.77 and 8,423.93 is: 11,625.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,497.48 : 21,386.77 = 8,423.93 : x
  2. Step 2: Convert to fraction form
    15,497.48/21,386.77 = 8,423.93/x
  3. Step 3: Cross multiply
    15,497.48x = 21,386.77 × 8,423.93
  4. Step 4: Simplify right side
    15,497.48x = 180,160,685.81
  5. Step 5: Solve for x
    x = 180,160,685.81/15,497.48
  6. Step 6: Final answer
    x = 11,625.16

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.