Home / 15,416.04-21,275.10-8,699.22

Finding the Fourth Proportional to 15,416.04, 21,275.10 and 8,699.22

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Solution

The fourth proportional to 15,416.04, 21,275.10 and 8,699.22 is: 12,005.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416.04 : 21,275.10 = 8,699.22 : x
  2. Step 2: Convert to fraction form
    15,416.04/21,275.10 = 8,699.22/x
  3. Step 3: Cross multiply
    15,416.04x = 21,275.10 × 8,699.22
  4. Step 4: Simplify right side
    15,416.04x = 185,076,775.42
  5. Step 5: Solve for x
    x = 185,076,775.42/15,416.04
  6. Step 6: Final answer
    x = 12,005.47

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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.