Home / 10,619.47-15,931.12-4,376.01

Finding the Fourth Proportional to 10,619.47, 15,931.12 and 4,376.01

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Solution

The fourth proportional to 10,619.47, 15,931.12 and 4,376.01 is: 6,564.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.47 : 15,931.12 = 4,376.01 : x
  2. Step 2: Convert to fraction form
    10,619.47/15,931.12 = 4,376.01/x
  3. Step 3: Cross multiply
    10,619.47x = 15,931.12 × 4,376.01
  4. Step 4: Simplify right side
    10,619.47x = 69,714,720.13
  5. Step 5: Solve for x
    x = 69,714,720.13/10,619.47
  6. Step 6: Final answer
    x = 6,564.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.