Home / 10,469.28-14,432.40-7,315.68

Finding the Fourth Proportional to 10,469.28, 14,432.40 and 7,315.68

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Solution

The fourth proportional to 10,469.28, 14,432.40 and 7,315.68 is: 10,085.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,469.28 : 14,432.40 = 7,315.68 : x
  2. Step 2: Convert to fraction form
    10,469.28/14,432.40 = 7,315.68/x
  3. Step 3: Cross multiply
    10,469.28x = 14,432.40 × 7,315.68
  4. Step 4: Simplify right side
    10,469.28x = 105,582,820.03
  5. Step 5: Solve for x
    x = 105,582,820.03/10,469.28
  6. Step 6: Final answer
    x = 10,085.01

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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.