Home / 10,303.20-14,218.38-5,587.47

Finding the Fourth Proportional to 10,303.20, 14,218.38 and 5,587.47

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Solution

The fourth proportional to 10,303.20, 14,218.38 and 5,587.47 is: 7,710.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,303.20 : 14,218.38 = 5,587.47 : x
  2. Step 2: Convert to fraction form
    10,303.20/14,218.38 = 5,587.47/x
  3. Step 3: Cross multiply
    10,303.20x = 14,218.38 × 5,587.47
  4. Step 4: Simplify right side
    10,303.20x = 79,444,771.70
  5. Step 5: Solve for x
    x = 79,444,771.70/10,303.20
  6. Step 6: Final answer
    x = 7,710.69

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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.