Home / 10,875.48-14,999.85-9,365.66

Finding the Fourth Proportional to 10,875.48, 14,999.85 and 9,365.66

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Solution

The fourth proportional to 10,875.48, 14,999.85 and 9,365.66 is: 12,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,875.48 : 14,999.85 = 9,365.66 : x
  2. Step 2: Convert to fraction form
    10,875.48/14,999.85 = 9,365.66/x
  3. Step 3: Cross multiply
    10,875.48x = 14,999.85 × 9,365.66
  4. Step 4: Simplify right side
    10,875.48x = 140,483,420.15
  5. Step 5: Solve for x
    x = 140,483,420.15/10,875.48
  6. Step 6: Final answer
    x = 12,917.45

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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.