Home / 13,570.04-18,722.40-8,265.08

Finding the Fourth Proportional to 13,570.04, 18,722.40 and 8,265.08

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Solution

The fourth proportional to 13,570.04, 18,722.40 and 8,265.08 is: 11,403.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.04 : 18,722.40 = 8,265.08 : x
  2. Step 2: Convert to fraction form
    13,570.04/18,722.40 = 8,265.08/x
  3. Step 3: Cross multiply
    13,570.04x = 18,722.40 × 8,265.08
  4. Step 4: Simplify right side
    13,570.04x = 154,742,133.79
  5. Step 5: Solve for x
    x = 154,742,133.79/13,570.04
  6. Step 6: Final answer
    x = 11,403.22

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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.