Home / 15,497.16-21,386.02-8,423.60

Finding the Fourth Proportional to 15,497.16, 21,386.02 and 8,423.60

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Solution

The fourth proportional to 15,497.16, 21,386.02 and 8,423.60 is: 11,624.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,497.16 : 21,386.02 = 8,423.60 : x
  2. Step 2: Convert to fraction form
    15,497.16/21,386.02 = 8,423.60/x
  3. Step 3: Cross multiply
    15,497.16x = 21,386.02 × 8,423.60
  4. Step 4: Simplify right side
    15,497.16x = 180,147,278.07
  5. Step 5: Solve for x
    x = 180,147,278.07/15,497.16
  6. Step 6: Final answer
    x = 11,624.53

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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.