Home / 15,506.02-21,398.16-8,432.50

Finding the Fourth Proportional to 15,506.02, 21,398.16 and 8,432.50

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Solution

The fourth proportional to 15,506.02, 21,398.16 and 8,432.50 is: 11,636.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,506.02 : 21,398.16 = 8,432.50 : x
  2. Step 2: Convert to fraction form
    15,506.02/21,398.16 = 8,432.50/x
  3. Step 3: Cross multiply
    15,506.02x = 21,398.16 × 8,432.50
  4. Step 4: Simplify right side
    15,506.02x = 180,439,984.20
  5. Step 5: Solve for x
    x = 180,439,984.20/15,506.02
  6. Step 6: Final answer
    x = 11,636.77

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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.