Home / 8,888.55-12,266.18-5,112.47

Finding the Fourth Proportional to 8,888.55, 12,266.18 and 5,112.47

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Solution

The fourth proportional to 8,888.55, 12,266.18 and 5,112.47 is: 7,055.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888.55 : 12,266.18 = 5,112.47 : x
  2. Step 2: Convert to fraction form
    8,888.55/12,266.18 = 5,112.47/x
  3. Step 3: Cross multiply
    8,888.55x = 12,266.18 × 5,112.47
  4. Step 4: Simplify right side
    8,888.55x = 62,710,390.37
  5. Step 5: Solve for x
    x = 62,710,390.37/8,888.55
  6. Step 6: Final answer
    x = 7,055.19

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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.