Home / 13,457.04-18,570.75-7,488.75

Finding the Fourth Proportional to 13,457.04, 18,570.75 and 7,488.75

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Solution

The fourth proportional to 13,457.04, 18,570.75 and 7,488.75 is: 10,334.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.04 : 18,570.75 = 7,488.75 : x
  2. Step 2: Convert to fraction form
    13,457.04/18,570.75 = 7,488.75/x
  3. Step 3: Cross multiply
    13,457.04x = 18,570.75 × 7,488.75
  4. Step 4: Simplify right side
    13,457.04x = 139,071,704.06
  5. Step 5: Solve for x
    x = 139,071,704.06/13,457.04
  6. Step 6: Final answer
    x = 10,334.49

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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.