Home / 15,254.04-21,050.28-8,539.68

Finding the Fourth Proportional to 15,254.04, 21,050.28 and 8,539.68

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Solution

The fourth proportional to 15,254.04, 21,050.28 and 8,539.68 is: 11,784.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,254.04 : 21,050.28 = 8,539.68 : x
  2. Step 2: Convert to fraction form
    15,254.04/21,050.28 = 8,539.68/x
  3. Step 3: Cross multiply
    15,254.04x = 21,050.28 × 8,539.68
  4. Step 4: Simplify right side
    15,254.04x = 179,762,655.11
  5. Step 5: Solve for x
    x = 179,762,655.11/15,254.04
  6. Step 6: Final answer
    x = 11,784.59

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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.