Home / 15,470.93-21,349.74-8,397.35

Finding the Fourth Proportional to 15,470.93, 21,349.74 and 8,397.35

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Solution

The fourth proportional to 15,470.93, 21,349.74 and 8,397.35 is: 11,588.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.93 : 21,349.74 = 8,397.35 : x
  2. Step 2: Convert to fraction form
    15,470.93/21,349.74 = 8,397.35/x
  3. Step 3: Cross multiply
    15,470.93x = 21,349.74 × 8,397.35
  4. Step 4: Simplify right side
    15,470.93x = 179,281,132.44
  5. Step 5: Solve for x
    x = 179,281,132.44/15,470.93
  6. Step 6: Final answer
    x = 11,588.26

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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.