Home / 15,583.90-21,505.64-8,510.32

Finding the Fourth Proportional to 15,583.90, 21,505.64 and 8,510.32

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Solution

The fourth proportional to 15,583.90, 21,505.64 and 8,510.32 is: 11,744.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,583.90 : 21,505.64 = 8,510.32 : x
  2. Step 2: Convert to fraction form
    15,583.90/21,505.64 = 8,510.32/x
  3. Step 3: Cross multiply
    15,583.90x = 21,505.64 × 8,510.32
  4. Step 4: Simplify right side
    15,583.90x = 183,019,878.20
  5. Step 5: Solve for x
    x = 183,019,878.20/15,583.90
  6. Step 6: Final answer
    x = 11,744.16

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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.