Home / 10,421.04-15,625.40-4,184.00

Finding the Fourth Proportional to 10,421.04, 15,625.40 and 4,184.00

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Solution

The fourth proportional to 10,421.04, 15,625.40 and 4,184.00 is: 6,273.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.04 : 15,625.40 = 4,184.00 : x
  2. Step 2: Convert to fraction form
    10,421.04/15,625.40 = 4,184.00/x
  3. Step 3: Cross multiply
    10,421.04x = 15,625.40 × 4,184.00
  4. Step 4: Simplify right side
    10,421.04x = 65,376,574.55
  5. Step 5: Solve for x
    x = 65,376,574.55/10,421.04
  6. Step 6: Final answer
    x = 6,273.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.