Home / 15,470.90-21,358.59-10,697.84

Finding the Fourth Proportional to 15,470.90, 21,358.59 and 10,697.84

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Solution

The fourth proportional to 15,470.90, 21,358.59 and 10,697.84 is: 14,769.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.90 : 21,358.59 = 10,697.84 : x
  2. Step 2: Convert to fraction form
    15,470.90/21,358.59 = 10,697.84/x
  3. Step 3: Cross multiply
    15,470.90x = 21,358.59 × 10,697.84
  4. Step 4: Simplify right side
    15,470.90x = 228,490,778.45
  5. Step 5: Solve for x
    x = 228,490,778.45/15,470.90
  6. Step 6: Final answer
    x = 14,769.07

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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.