Home / 10,235.12-14,123.45-5,758.77

Finding the Fourth Proportional to 10,235.12, 14,123.45 and 5,758.77

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Solution

The fourth proportional to 10,235.12, 14,123.45 and 5,758.77 is: 7,946.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,235.12 : 14,123.45 = 5,758.77 : x
  2. Step 2: Convert to fraction form
    10,235.12/14,123.45 = 5,758.77/x
  3. Step 3: Cross multiply
    10,235.12x = 14,123.45 × 5,758.77
  4. Step 4: Simplify right side
    10,235.12x = 81,333,700.16
  5. Step 5: Solve for x
    x = 81,333,700.16/10,235.12
  6. Step 6: Final answer
    x = 7,946.54

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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.