Home / 13,328.03-18,384.48-10,681.76

Finding the Fourth Proportional to 13,328.03, 18,384.48 and 10,681.76

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Solution

The fourth proportional to 13,328.03, 18,384.48 and 10,681.76 is: 14,734.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.03 : 18,384.48 = 10,681.76 : x
  2. Step 2: Convert to fraction form
    13,328.03/18,384.48 = 10,681.76/x
  3. Step 3: Cross multiply
    13,328.03x = 18,384.48 × 10,681.76
  4. Step 4: Simplify right side
    13,328.03x = 196,378,603.08
  5. Step 5: Solve for x
    x = 196,378,603.08/13,328.03
  6. Step 6: Final answer
    x = 14,734.26

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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.