Home / 10,946.71-15,105.84-6,470.88

Finding the Fourth Proportional to 10,946.71, 15,105.84 and 6,470.88

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Solution

The fourth proportional to 10,946.71, 15,105.84 and 6,470.88 is: 8,929.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,946.71 : 15,105.84 = 6,470.88 : x
  2. Step 2: Convert to fraction form
    10,946.71/15,105.84 = 6,470.88/x
  3. Step 3: Cross multiply
    10,946.71x = 15,105.84 × 6,470.88
  4. Step 4: Simplify right side
    10,946.71x = 97,748,077.94
  5. Step 5: Solve for x
    x = 97,748,077.94/10,946.71
  6. Step 6: Final answer
    x = 8,929.45

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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.