Home / 11,223.64-15,479.53-9,876.34

Finding the Fourth Proportional to 11,223.64, 15,479.53 and 9,876.34

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Solution

The fourth proportional to 11,223.64, 15,479.53 and 9,876.34 is: 13,621.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,223.64 : 15,479.53 = 9,876.34 : x
  2. Step 2: Convert to fraction form
    11,223.64/15,479.53 = 9,876.34/x
  3. Step 3: Cross multiply
    11,223.64x = 15,479.53 × 9,876.34
  4. Step 4: Simplify right side
    11,223.64x = 152,881,101.32
  5. Step 5: Solve for x
    x = 152,881,101.32/11,223.64
  6. Step 6: Final answer
    x = 13,621.35

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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.