Home / 9,918.63-14,878.76-4,985.73

Finding the Fourth Proportional to 9,918.63, 14,878.76 and 4,985.73

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Solution

The fourth proportional to 9,918.63, 14,878.76 and 4,985.73 is: 7,479.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.63 : 14,878.76 = 4,985.73 : x
  2. Step 2: Convert to fraction form
    9,918.63/14,878.76 = 4,985.73/x
  3. Step 3: Cross multiply
    9,918.63x = 14,878.76 × 4,985.73
  4. Step 4: Simplify right side
    9,918.63x = 74,181,455.17
  5. Step 5: Solve for x
    x = 74,181,455.17/9,918.63
  6. Step 6: Final answer
    x = 7,479.00

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1.5x scale

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.