Home / 10,888.28-15,021.51-7,110.24

Finding the Fourth Proportional to 10,888.28, 15,021.51 and 7,110.24

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Solution

The fourth proportional to 10,888.28, 15,021.51 and 7,110.24 is: 9,809.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,888.28 : 15,021.51 = 7,110.24 : x
  2. Step 2: Convert to fraction form
    10,888.28/15,021.51 = 7,110.24/x
  3. Step 3: Cross multiply
    10,888.28x = 15,021.51 × 7,110.24
  4. Step 4: Simplify right side
    10,888.28x = 106,806,541.26
  5. Step 5: Solve for x
    x = 106,806,541.26/10,888.28
  6. Step 6: Final answer
    x = 9,809.31

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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.