Home / 14,262.56-19,681.52-7,888.78

Finding the Fourth Proportional to 14,262.56, 19,681.52 and 7,888.78

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Solution

The fourth proportional to 14,262.56, 19,681.52 and 7,888.78 is: 10,886.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,262.56 : 19,681.52 = 7,888.78 : x
  2. Step 2: Convert to fraction form
    14,262.56/19,681.52 = 7,888.78/x
  3. Step 3: Cross multiply
    14,262.56x = 19,681.52 × 7,888.78
  4. Step 4: Simplify right side
    14,262.56x = 155,263,181.35
  5. Step 5: Solve for x
    x = 155,263,181.35/14,262.56
  6. Step 6: Final answer
    x = 10,886.07

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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.