Home / 10,559.04-15,818.40-6,400.32

Finding the Fourth Proportional to 10,559.04, 15,818.40 and 6,400.32

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Solution

The fourth proportional to 10,559.04, 15,818.40 and 6,400.32 is: 9,588.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,559.04 : 15,818.40 = 6,400.32 : x
  2. Step 2: Convert to fraction form
    10,559.04/15,818.40 = 6,400.32/x
  3. Step 3: Cross multiply
    10,559.04x = 15,818.40 × 6,400.32
  4. Step 4: Simplify right side
    10,559.04x = 101,242,821.89
  5. Step 5: Solve for x
    x = 101,242,821.89/10,559.04
  6. Step 6: Final answer
    x = 9,588.26

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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.