Home / 15,582.02-21,505.65-8,868.02

Finding the Fourth Proportional to 15,582.02, 21,505.65 and 8,868.02

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Solution

The fourth proportional to 15,582.02, 21,505.65 and 8,868.02 is: 12,239.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,582.02 : 21,505.65 = 8,868.02 : x
  2. Step 2: Convert to fraction form
    15,582.02/21,505.65 = 8,868.02/x
  3. Step 3: Cross multiply
    15,582.02x = 21,505.65 × 8,868.02
  4. Step 4: Simplify right side
    15,582.02x = 190,712,534.31
  5. Step 5: Solve for x
    x = 190,712,534.31/15,582.02
  6. Step 6: Final answer
    x = 12,239.27

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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.