Home / 11,130.04-15,353.32-7,089.36

Finding the Fourth Proportional to 11,130.04, 15,353.32 and 7,089.36

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Solution

The fourth proportional to 11,130.04, 15,353.32 and 7,089.36 is: 9,779.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,130.04 : 15,353.32 = 7,089.36 : x
  2. Step 2: Convert to fraction form
    11,130.04/15,353.32 = 7,089.36/x
  3. Step 3: Cross multiply
    11,130.04x = 15,353.32 × 7,089.36
  4. Step 4: Simplify right side
    11,130.04x = 108,845,212.68
  5. Step 5: Solve for x
    x = 108,845,212.68/11,130.04
  6. Step 6: Final answer
    x = 9,779.41

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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.