Home / 13,303.86-18,360.15-7,335.51

Finding the Fourth Proportional to 13,303.86, 18,360.15 and 7,335.51

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Solution

The fourth proportional to 13,303.86, 18,360.15 and 7,335.51 is: 10,123.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303.86 : 18,360.15 = 7,335.51 : x
  2. Step 2: Convert to fraction form
    13,303.86/18,360.15 = 7,335.51/x
  3. Step 3: Cross multiply
    13,303.86x = 18,360.15 × 7,335.51
  4. Step 4: Simplify right side
    13,303.86x = 134,681,105.27
  5. Step 5: Solve for x
    x = 134,681,105.27/13,303.86
  6. Step 6: Final answer
    x = 10,123.46

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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.