Home / 13,373.67-18,457.95-7,707.40

Finding the Fourth Proportional to 13,373.67, 18,457.95 and 7,707.40

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Solution

The fourth proportional to 13,373.67, 18,457.95 and 7,707.40 is: 10,637.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,373.67 : 18,457.95 = 7,707.40 : x
  2. Step 2: Convert to fraction form
    13,373.67/18,457.95 = 7,707.40/x
  3. Step 3: Cross multiply
    13,373.67x = 18,457.95 × 7,707.40
  4. Step 4: Simplify right side
    13,373.67x = 142,262,803.83
  5. Step 5: Solve for x
    x = 142,262,803.83/13,373.67
  6. Step 6: Final answer
    x = 10,637.53

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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.