Home / 15,445.02-21,313.82-8,730.52

Finding the Fourth Proportional to 15,445.02, 21,313.82 and 8,730.52

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Solution

The fourth proportional to 15,445.02, 21,313.82 and 8,730.52 is: 12,047.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445.02 : 21,313.82 = 8,730.52 : x
  2. Step 2: Convert to fraction form
    15,445.02/21,313.82 = 8,730.52/x
  3. Step 3: Cross multiply
    15,445.02x = 21,313.82 × 8,730.52
  4. Step 4: Simplify right side
    15,445.02x = 186,080,731.79
  5. Step 5: Solve for x
    x = 186,080,731.79/15,445.02
  6. Step 6: Final answer
    x = 12,047.94

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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.