Home / 15,678.02-21,635.65-8,604.46

Finding the Fourth Proportional to 15,678.02, 21,635.65 and 8,604.46

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Solution

The fourth proportional to 15,678.02, 21,635.65 and 8,604.46 is: 11,874.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678.02 : 21,635.65 = 8,604.46 : x
  2. Step 2: Convert to fraction form
    15,678.02/21,635.65 = 8,604.46/x
  3. Step 3: Cross multiply
    15,678.02x = 21,635.65 × 8,604.46
  4. Step 4: Simplify right side
    15,678.02x = 186,163,085.00
  5. Step 5: Solve for x
    x = 186,163,085.00/15,678.02
  6. Step 6: Final answer
    x = 11,874.15

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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.